#!/usr/bin/python
# encoding: utf-8
'''
@File    :   hanshudiaoyong.py
@Time    :   2020/03/12 00:34:57
@Author  :   fangkaijin 
@Version :   1.0
@Contact :   fangkaijin@gmail.com
@License :   杭州移动互联
@Desc    :   None
'''

# 导入库包
import sys, os

print(abs(-1))
l = [1, 2, 3, 100]
print(max(l))
print(int('123'))
print(str(123))